Lubricating system for explosion-engines.



C. H. TAYLOR & H. E. GOPPIN.

LUBRIGATING SYSTEM PoR EXPLOSION ENGINES.

2 SHEETS-SHEET 1.

Patented May 14, 1912'.

APPLICATION FILED JUNE 27, 1910.

jill/111iY c. H. TAYLOR & H. E. ooPPIN. LUBRIGA'IING vSYSTEM FOR EXPLOSION ENGINES.

APPLICATION FILED JUNE 27, 1910.

Patented May 14, 1912.

2 SHEETS-SHEET 2.

liiisiiTiri) sTATiis PATENT onirica.

CEGILBAMELIN TAYLOR AND rHowarm E. corriiv, or DETROIT, MICHIGAN.

lIJU'BBJQA'-III1\TG SYSTEM FOR EXPLOSION-ENGINES.

Specification of Letters Patent.

u PatentedMay14, 1912.*l

^ To all whom, t may concern.'

l Be it known that we, CEciL HAMiiLiN A:TArLoRand I-IowARD E. COFFIN, citizens of the United States of America, residing -at' 5-Detroit, in the county of Wayne and State of Michigan, have invented certain new'andvtems more particularly designed for use in `eiqilpsion engines which -areprovided with rotary valves for controlling the inlet and exhaust passages. 'wwf The invention consists in the means for distributing the lubricant to the" valves, l their operating mechanism and to the crank lcase, and, further, in the peculiar construc- 2'0 tion of theparts as hereinafter set forth. In the drawings- Figure l isa vertical i Ilongit'udinal section through an'lengine to ywhich ourflubricating system `is applied;

'Fig 2 isy a'section at right' angles to Fig. 1 vthrough the combined transmission housing and lubricant channel.

rality' of cylinders B. f [C' a1'e rotary valves of thedisk type' arranged within each cylinder atthe upper end thereof. v j y' y Y Dis arotary shaft or stem for operating the 4valves which extend outward through a- 1 bearing in the head E of thecylinder.

vF arey gear wheels securedl'to the shafts D A and\intermeshingwith each other, and G w isa housing for said gears preferably having a detachable cap H. The'gears G are driven from the crank shaft of the engine through-the medium of a transmission preferablyv `comprising a vertical shaft I arranged adjacent to Vthe cylinder at Aone end of the casing, and voffset to one side of the plane of the crank shaft. This shaft has 4.5 at its upper end. the pinion J meshing with Y the end gear F, and near its lower end the "Shaft is connected by spiral gears lK anld f-Kfjjwitha transverse shaft L which in turn his :connected byspiral gears to the `cranky shaft M. The shaft I is inclosed by a suitclos'ed by a casing. i fOur'lubricating system includes 4the ordi- .lufrcant tof'each ofthe valves andthe The invention relates to lubricating sys` t A is the engine casing comprising a plultransmission shaft I extends.

able housing N, and the gears (are also inl-' Application lediune 27, 1910.. Serial No. 569,205;

operating mechanism therefor. For the latter purpose, the lubricant is first elevated by a pump O preferably located in the crank vcase and by an lextension P of the shaft I. The oil is drawn from a storage chamber Q below the crank case and isl propelled through a conduit R to the housing G at one end thereof; From this point, it is fed by gravity tothe opposite end of ,the casing successively lubricating the gears F and the stems'T of the valves.-

These stems are preferably Aprovided with spiral grooves and, as shown, these grooves have oppositely pitched portions' S S', which propel the lubricant upward and downward along the stem from the point of the first contact.v To insure equal lubrication for each valve regardless of the tiltingl of the engine case in different directions, annular flanges T are arranged around each stem which'form a well or pool for retaining the lubricant. From this pool a duct T extends downward to the pointof the reversely pitched grooves S S', and thus the lubricant is fed both ways along the stein. At the lower end of the stein, the

lubricant isy fed between the face of the valve and the seat upon the cylinder head, and if desireda spiral groove U may bear-- ranged in the face of the valve to propel the lubricant outwardy toward the periphery.' y

At the opposite end of the casing G from that with which the-conduit R is connected is a tubular housing N through which the This tubular housing forms also an oil duct for receiving the lubricant from the casing Gr and conveying it to the crank case. At' the lower end of the tubular housing is a conduit V, which extends longitudinally through the crank case to the opposite end thereof to' where the oil is discharged. This renews the supply for the splashv pocket in the crank case and a constant level is maintained by an overflow W which communi.

render the distribution of the lubricant morefuniform'.

- In operation, a quantity of the lubricant i is maintained ateach of the two different level'-ifviz.",4 in the' crank case and in the gear case Vat the upper end of the cylinders.

and byfieason of the annular ribs T I an'individual supply is maintained for each valve, even when the caseyis tilted., Thesupply of thelubricantv is constantly renewed for the upperlevel by lthe pump O and -through'the conduit R, and the overflow from the .upper level is conveyed through the housing M and conduit V to the crank case' for renewing the supply in the splash pockets.'l

` is fedto'ieach level a't-the same end of the engine casing having a lubricant receptaclef l means for receptacle,

vlevel lubricated froml the higher receptacle,

casing, and thus the direction ofthe flow is` the same. Thus, Where asin-the case'ofl a marine engine the'. case is inclined, the lubricant will flow :from one' cylinder to another,

and fromone compartmentof the crank to acent, maintaining uniform lu.

the next ad] brication for eachpart.

What we claim' asy our invention is: 1, In' an engine, the'combination'of the there being a second lubricant receptacle 'at L a'rlevel abovethe first-mentioned receptacle,

supplyingl lubricantA to the upper mechanism. .adjacent the higher i mechanism lubricated .from the lower'recep- .tacle,k and an overflowlfrompthe higher to the lower receptacle. 2. In an'engine, the combination of the engine casing having two lubricant receptacles therein at different levels, a series of ribs for dividingjeach receptacle into indif vidual pockets having an overflow from one to another, means for supplying the lubricant to the upper receptacle at one lend'of rthe casing, and means at the same end of the casing forfeeding to the lower recep-v tacle the lubricant dischargedfrom the' up. 'per receptacle at the opposite ,v end'of fthe casing.

3. Insan'engine, the combination'v of the' engine casinghaving two lubricantrecep tacles therein at dierent'levels and a drain 'receptacle at a still lower level, means -for pumping the lubricant- .from the rdrain re@ c ept-acle and conveying'the same to the upper level at one end -of the casing, a conduit; discharging tothe nextlowerrece'ptacle at the same end of the casing* and leading from an'overflow of the upperfreceiptacle at the y opposite' 'end' of the casing, and an overflow from the lower receptacle at'the latter end of the casing tothe drainage receptacle. i

4. In a lubricating system for engines,the

ycombination with the cylinderand the crank lcylinder. l i

lubricating system for engines, the combination with the l`cylinder, the crank "It vwill be noted .that thelubricant lat-two different t 'lower level forming a splash pocket, anv

case, of a lubricant receptacle at the upper end ofthe lcylinder, a discharge conduit. leading from said receptacle to thecrank case, a drainage receptacle below the crank Acase with an overflow from the latter con- -necting therewith, and means for pumping the lubricant'from said drainage receptacle tothe receptacle at t-lie upper end of'the case and crank shaft, of a rotary valve for the cylinder, a drive mechanism between said crank shaft and said valve includinga vertically-extending shaft,"a lubricant receptacle for said. valve, a tubular housing for said shaft forming a duct for conveying the` lubricant from said receptacle to the crank case. l

6.-` In an engine, the 'combination of the engine casing having a plurality ofv lubricant receptacles at different levels, means for supplying lubricant' to the'upper level storage chamber ata still 7', In an engine, the combination withA an engine casing having lubricant receptacles levels, the receptacle vat the overflow chamber in'whicli the splashJ pocket tothe upper level, and an overflow from the upper level to the splash pocket.

8.Y In an engine, al casing having a cant Isplash pocket in thegcrank chamber thereof and a higher taining both levels.

9. In an engine, a casing having a lubricant receptacle in the crank chamber thereof and l In. testimony whereof we allix our signa- -tures in presence of two witnesses,

cnciL HAMELIN TAYLOR. HOWARDv E. COFFIN. Witnesses: I LENA M. CABLE, ETEL J. Essie.

from the rhigher receptacle to the for returning the lubricant.

and for discharging it therefromyt'o4 the'V rlower level, and a lower` level into which the lubricantis dis.

lcharged.

discliarges, means for supplying lubricant lubricant ,receptacle at ai@ level, a valve receiving its lubricant from its -higherleveL and means for mainipo' higher .levell lubricated 

